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1
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry.
construction materials-namely, bituminous waterproofing products in both liquid and plastic form, asphalt emulsion waterproofing products in semiliquid form, caulking, glazing, and pointing compounds, [ plastic cements for airproofing and insulating purposes, cork and plaster bonding compounds, ] concrete-floor hardeners, emulsified asphalts for floor resurfacing, pipe-joint compounds, and liquid and plastic roof coatings
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17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
construction materials-namely, bituminous waterproofing products in both liquid and plastic form, asphalt emulsion waterproofing products in semiliquid form, caulking, glazing, and pointing compounds, [ plastic cements for airproofing and insulating purposes, cork and plaster bonding compounds, ] concrete-floor hardeners, emulsified asphalts for floor resurfacing, pipe-joint compounds, and liquid and plastic roof coatings
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19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
construction materials-namely, bituminous waterproofing products in both liquid and plastic form, asphalt emulsion waterproofing products in semiliquid form, caulking, glazing, and pointing compounds, [ plastic cements for airproofing and insulating purposes, cork and plaster bonding compounds, ] concrete-floor hardeners, emulsified asphalts for floor resurfacing, pipe-joint compounds, and liquid and plastic roof coatings